/Engine/Source/Runtime/Engine/Public/FXSystem.h
Notification from the renderer that it is about to perform visibility checks on FX belonging to this system.
void PreInitViews ( [FRDGBuilder](API\Runtime\RenderCore\FRDGBuilder) & GraphBuilder, bool bAllowGPUParticleUpdate, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [FSceneViewFamily](API\Runtime\Engine\FSceneViewFamily) * > & ViewFamilies, const [FSceneViewFamily](API\Runtime\Engine\FSceneViewFamily) * CurrentFamily )